Legacy_objc_type rule triggered but there's no suitable swift value types

New Issue Checklist

• I've Updated SwiftLint to the latest version.
• I've searched for existing GitHub issues.

Bug Description

The legacy_objc_type triggers when I'm using a method that needs conformance to NSObjectProtocol, so I can't use String instead of NSString (for example with NSItemProvider):

if provider.hasItemConformingToTypeIdentifier(UTType.plainText.identifier) {
    // This triggers a violation:
    _ = provider.loadObject(ofClass: NSString.self) { string, _ in
        if let text = string as? String {
            …
        }
    }
    return true
}

This forces me to place a disabling comment, but ideally the linter should recognize that loadObject(ofClass:), and other APIs like it, expect an NSObjectProtocol conforming type, so value types are not really suitable.

I'm invoking SwiftLint like this:

$ swiftlint --strict

Environment

• SwiftLint version 0.65.0
• Xcode version 27.0 (27A5209h)
• Installation method used: homebrew
• Configuration file:

only_rules:
  # Spacing and Formatting
  - leading_whitespace
  - trailing_whitespace
  - trailing_newline
  - vertical_whitespace
  - vertical_whitespace_closing_braces
  - vertical_whitespace_opening_braces
  - indentation_width
  - empty_count
  - empty_string
  - empty_collection_literal

  # Code Structure
  - control_statement
  - colon
  - comma
  - opening_brace
  - closing_brace
  - return_arrow_whitespace
  - function_name_whitespace
  - operator_usage_whitespace
  - trailing_semicolon
  - generic_type_name
  - type_name
  - identifier_name
  - function_parameter_count

  # Swift Best Practices
  - redundant_string_enum_value
  - implicit_optional_initialization
  - redundant_nil_coalescing
  - redundant_objc_attribute
  - redundant_set_access_control
  - redundant_type_annotation
  - redundant_void_return
  - unused_import
  - unused_declaration
  - unused_closure_parameter
  - unused_enumerated
  - for_where
  - implicit_return
  - implicit_getter
  - is_disjoint
  - mark
  - no_fallthrough_only
  - no_space_in_method_call
  - notification_center_detachment
  - overridden_super_call
  - prefer_self_in_static_references
  - prefer_self_type_over_type_of_self
  - private_action
  - private_outlet
  - protocol_property_accessors_order
  - trailing_closure
  - unneeded_parentheses_in_closure_argument
  - unowned_variable_capture
  - untyped_error_in_catch
  - weak_delegate
  - xct_specific_matcher

  # Performance and Safety
  - class_delegate_protocol
  - discarded_notification_center_observer
  - duplicate_enum_cases
  - duplicate_imports
  - dynamic_inline
  - empty_enum_arguments
  - explicit_init
  - fallthrough
  - fatal_error_message
  - first_where
  - force_cast
  - force_try
  - force_unwrapping
  - function_default_parameter_at_end
  - identical_operands
  - last_where
  - legacy_cggeometry_functions
  - legacy_constant
  - legacy_constructor
  - legacy_hashing
  - legacy_nsgeometry_functions
  - legacy_random
  - multiple_closures_with_trailing_closure
  - no_extension_access_modifier
  - nsobject_prefer_isequal
  - optional_enum_case_matching
  - orphaned_doc_comment
  - prefer_nimble
  - prefer_zero_over_explicit_init
  - prohibited_interface_builder
  - prohibited_super_call
  - quick_discouraged_call
  - quick_discouraged_focused_test
  - quick_discouraged_pending_test
  - reduce_boolean
  - reduce_into
  - sorted_first_last
  - static_operator
  - strict_fileprivate
  - switch_case_alignment
  - toggle_bool
  - unavailable_function
  - unhandled_throwing_task
  - void_function_in_ternary
  - yoda_condition

  # Modern Swift
  - array_init
  - block_based_kvo
  - compiler_protocol_init
  - contains_over_filter_count
  - contains_over_filter_is_empty
  - contains_over_first_not_nil
  - contains_over_range_nil_comparison
  - deployment_target
  - discouraged_assert
  - discouraged_direct_init
  - discouraged_none_name
  - discouraged_object_literal
  - discouraged_optional_boolean
  - discouraged_optional_collection
  - empty_parentheses_with_trailing_closure
  - file_name_no_space
  - flatmap_over_map_reduce
  - ibinspectable_in_extension
  - joined_default_parameter
  - legacy_multiple
  - legacy_objc_type
  - lower_acl_than_parent
  - modifier_order
  - ns_number_init_as_function_reference
  - object_literal
  - pattern_matching_keywords
  - prefer_type_checking
  - self_in_property_initialization
  - shorthand_optional_binding
  - superfluous_disable_command
  - type_body_length
  - type_contents_order
  - unavailable_condition

# Rule Configuration
indentation_width:
  indentation_width: 4
  include_comments: false

identifier_name:
  min_length:
    warning: 2
    error: 1
  max_length:
    warning: 50
    error: 60
  excluded:
    - id
    - x
    - y
    - z
    - i
    - j
    - k

type_name:
  min_length:
    warning: 3
    error: 2
  max_length:
    warning: 50
    error: 60

function_parameter_count:
  warning: 5
  error: 8

type_body_length:
  warning: 400
  error: 500

excluded:
  - .build
  - .swiftpm
  - DerivedData
  - "**/Generated/*"

reporter: "xcode"

Are you using nested configurations? Nope

Start with the legacy_objc_type rule and reproduce the reported NSItemProvider loadObject(ofClass:) example using swiftlint --strict. Done means the rule no longer flags this required NSString usage while retaining its intended diagnostics.